When trying to backup I’m told I don’t have enough iCloud storage. But when I checked- it shows that I’m only using 1.4gb out of 5gb of iCloud storage... so I should have enough to do a backup...

When trying to do a back up on my iPhone X I get the notification that I do not have enough iCloud storage. Then when I go onto the Settings to check my iCloud storage it shows that I am only using 1.4 GB out of five GB. I also turned most of my apps off for the update so that there should be plenty of storage space to do the download. Again, it didn’t work